You're just going to wind up making changes where you don't need them that way. There's no guarantee that because the code looks the same it does the same. An I

You're just going to wind up making changes where you don't need them that way. There's no guarantee that because the code looks the same it does the same. An IDE can't figure out what side-effects will happen. By just letting your IDE make changes globally, you're running the risk of introducing bugs. By DRYng up your code, you know that the change you make will have the same result everywhere.